*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html ,body{
    width: 1240px;
    margin: 0 auto;
    margin: 0 auto;
}

ul {
    list-style-type: none;
}
ul > li {
    display: flex;
    padding: 1rem;
}
ul > li span {
    padding: 0 1rem;
}
ul > li span:first-of-type {
    flex: 1.5;
}
ul > li span:nth-of-type(2) {
    flex: 5;
    overflow: auto;
}
ul > li span:last-of-type {
    flex: 1.5;
}

.drag-area {
    width: 600px;
    height: 300px;
    border: 1px solid lightgreen;
    margin: 0 auto;
    font-size: 30px;
    text-align: center;
    line-height: 300px;
}

 

[data-highlight] {
    color: #eee!important;
}

[data-highlight = 'pink'] {
    background-color: pink;
}

[data-highlight = 'yellow'] {
    background-color: yellow;
}

[data-highlight = 'lightgreen'] {
    background-color: lightgreen;
}

[data-highlight = 'dodgerblue'] {
    background-color: dodgerblue;
}